Lichens are a type of parasitic organism that often grow on rocks and trees

Lichens are a type of parasitic organism that often grow on rocks and trees in areas with dirty, polluted air. During a study of lichens and air quality in part of China, scientists measure the thickness of lichens and estimate how many rocks and trees are covered with lichens in one town. The scientists are following the scientific cycle of observing while using a systematic process, establishing facts, explaining facts, and then returning to the systematic process to collect more facts. When scientists carefully measure the lichens and agree on their average thickness and how often they appear, which parts of the scientific cycle are the scientists using? process and facts, because they are using a systematic method to measure and then record data process and facts, because they are observing lichens and air quality and describing why they are related explanation and process, because they are using a systematic method to measure and then record data explanation and process, because they are observing lichens and air quality and describing why they are related Mark this and return

2 months ago

Solution 1

Guest Guest #2392118
2 months ago

Lichens cannot filter what they absorb since they lack roots and protective surfaces, thus everything is in the air is taken directly in. If there are pollutants, they can build up in the lichen and quickly turn hazardous.

What is lichens?

Lichens are not isolated organisms. It is actually a symbiotic relationship between a fungus and an alga or cyanobacterium. Cyanobacteria are occasionally still referred to as 'blue-green algae', despite they are quite distinct from the algae.

Lichens are both fungi and plants—not just one or the other. Fungal hyphen are the threads that make up a lichen's external skin and internal structure. Individual algae cells are scattered amid the strands inside the lichen.

Because they get all of their nutrients and water from wet and dry air deposition, lichens are particularly vulnerable to atmospheric pollutants like nitrogen (N) (fall out). Nutrient loads may rise as a result of nitrogen deposition.

Therefore, Lichens are a type of parasitic organism that often grow on rocks and trees in areas with dirty, polluted air.

Learn more about lichens here:

brainly.com/question/14040236

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Solution 2

Guest Guest #2392119
2 months ago

Answer:

process and facts, because they are using a systematic method to measure and then record data

Explanation:

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